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-rw-r--r--target/linux/generic/hack-4.9/660-fq_codel_defaults.patch10
1 files changed, 8 insertions, 2 deletions
diff --git a/target/linux/generic/hack-4.9/660-fq_codel_defaults.patch b/target/linux/generic/hack-4.9/660-fq_codel_defaults.patch
index c91ea01b50..3e6473056c 100644
--- a/target/linux/generic/hack-4.9/660-fq_codel_defaults.patch
+++ b/target/linux/generic/hack-4.9/660-fq_codel_defaults.patch
@@ -3,6 +3,9 @@ From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:21:53 +0200
Subject: hack: net: fq_codel: tune defaults for small devices
+Assume that x86_64 devices always have a big memory and do not need this
+optimization compared to devices with only 32 MB or 64 MB RAM.
+
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
net/sched/sch_fq_codel.c | 2 +-
@@ -10,12 +13,15 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
-@@ -479,7 +479,7 @@ static int fq_codel_init(struct Qdisc *s
+@@ -479,7 +479,11 @@ static int fq_codel_init(struct Qdisc *s
sch->limit = 10*1024;
q->flows_cnt = 1024;
-- q->memory_limit = 32 << 20; /* 32 MBytes */
++#ifdef CONFIG_X86_64
+ q->memory_limit = 32 << 20; /* 32 MBytes */
++#else
+ q->memory_limit = 4 << 20; /* 4 MBytes */
++#endif
q->drop_batch_size = 64;
q->quantum = psched_mtu(qdisc_dev(sch));
q->perturbation = prandom_u32();